<template>
  <div class='login_container'>
    <div class="login_box">
      <!-- 头像 -->
      <div class="avatar_box">
        <img src="../assets/logo.png">
      </div>
      <!-- 表单区域 -->
      <el-form :model="loginForm" :rules="loginRules" ref='loginFormRef' label-width='0px'  class="login_form">
        <el-form-item prop="username">
          <el-input v-model="loginForm.username" prefix-icon="iconfont icon-users"></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input v-model="loginForm.password" prefix-icon="iconfont icon-3702mima" type='password' @keyup.enter.native="login"></el-input>
        </el-form-item>
        <el-form-item class="login_bottom">
          <el-button type="primary" @click="login" >登录</el-button>
          <el-button @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  data () {
    return {
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      loginRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    // 重置表单的处理函数
    resetLoginForm () {
      this.$refs.loginFormRef.resetFields()
    },
    // 点击登录的处理函数
    login () {
      this.$refs.loginFormRef.validate(async valid => {
        if (!valid) return false
        const { data: res } = await this.$http.post('login', this.loginForm)
        console.log(res)
        if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
        this.$message.success(res.meta.msg)
        // 将请求获取到的token存到本地
        window.sessionStorage.setItem('token', res.data.token)
        this.$router.push('/home')
      })
    }
  }
}
</script>

<style lang="less" scoped>
.login_container{
  background-color: #2b4b6b;
  height: 100%;
}
.login_box{
  height: 300px;
  width: 450px;
  background-color: #fff;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%);
}
.avatar_box{
  width: 130px;
  height: 130px;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  border: 1px solid #ccc;
  border-radius: 50%;
  padding: 10px;
  box-shadow: 0 0 10px #ddd;
  top: -20%;
  background-color: #fff;

  img{
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-color: #eee;
  }
}
.login_form{
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;

  .login_bottom{
    display: flex;
    justify-content: flex-end
    ;
  }
}
</style>
